No, it is another product made by the makers of JB-Weld.
Specifically intended for things like filling in "Not For Sale" etchings.

I only saw "JB-Weld for Plastic" and other products at the JB site -- no JB-Patch...

Instead of removing and refilling the white, just sand down the raised white lettering before painting. But I would paint it flat black for improved perceived screen contrast. And instead of the amazon logo, I would go with a little skull and cross-bones pirate logo.